Railway-crossing.



Patented Sept. 15,1908.

Inventor-i FerZz'nancZH -QZIW UNITED sir FERDINAND HALLEY, OF CHICAGO,ILLINOIS.

RAILWAY-CROSSING.

Specification of Letters Patent.

Application filed May 21, 1908.

Patented Sept. is, loss.

Serial No. $34,041.

To all whom it may concern:

Be it known that I, FERDINAND HALLEY, r citizen of the United States,residing at (hicago, county of ook, and State of Illinois, have inventedcertain new and useful improvements in Railway-Crossings, of which thefollowing is a s )ecification.

My invention relates to railway crossings and the object of my inventionis to provide an improved railway crossing whereby the noise andvibration incident to the usual crossings shall be obviated.

Other objects will appear hereinafter.

My invention will be more readily understood by reference to theaccompanying drawings, forming a part of this specification and in whichFigure 1, is a perspective view of a railway crossing embodying myinvention in its preferred form, Fig. 2, is a side elevation of one ofthe approached portions of the device taken between the points m and nof Figv and illustrated upon' an enlarged scale, Figs. 3, 4 and 5 arecross sections on the lines m, 3/ and 2 respectively of Fig. 2.

The crossing consists generally in the. rails 1, 1 passing in onedirection, and the rails 2, 2 passing at an angle to the rails 1, 1. inthe drawings l have illustrated but a single track in cach direction,but it is to be understood that my invention is applicable to crossingswhere two or more tracks pass in either or both directions. The crossingis preferably formed of a'single piece of nietal and the ends of therail portions are shaped to conform to the cross section of therail ofwhich the track is formed, said cross section being preferably thatshown in Fig. 5.

3 indicates the tread of the rail, for the inner flange and 5 the grooveto receive the flange-G of the wheel 7. The tread 3 of the several railsextends perfectly straight or horizontal from one end to the other ofthe device, and the several treads are formed in the same horizontalplane. The groove 5 begins to taper upwardly from a. point 8 near theouter end of the approach. to a point 9 near the point of intersectionof the cross rail. As the car approaches the crossing the flanges 6 ofthe wheels will pass almost in!- perc'eptibly up the inclined bottom H)of the groove until the flanges pass on to the tread 3. It is obviousthat theicar will pass over the crossing without any of the noise or iibration which is common. to crossings in which the tread of the wheelrenniins in contact with the transversely grooved treads of the rails.

The flange 4 tapers upwardly from a point ll, adjacent to the point 3 toa point 1; where it reaches a height above the tread equal to thegreatest depth of the groove 5, forming the flange portion 12% whichprevents dis 'ilacementof the wheels from the rails as the flanges ofthe wheels pass from the grooves.

14- indicates flanges constituting continuations of the flanges 13, andbetween the crossing rails, the apertures 15 between the adjacent endsof the flanges "i3 and 14 per mit the wheels to pass without noise orvibration Having described my invention, what 1 claim as new and desireto secure by Letters Patent is:

A rail crossing comprising the intersecting grooved rails, the treads ofsaid rails being in the same horizontal plane and unbrolren throughouttheir extent, and the. grooves and inner flanges tapering graduallyupwards from a point adjacent to the ends to a point adjacent to thecrossing rail, substantially as described.

ln testimony whereof l have signed my name to this specification in thepresence of two subscribing witnesses,

lh itnesses I i JANET E. HOGAN, llnilnn l LILLIS.

